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Monday, August 07, 2006

BlackBerry Enterprise Server: Users Not Receiving Messages to Handheld After Mailbox Moves

Summary:

BlackBerry server maps user mailboxes by using a process called worker treads. Each worker tread is cable of handling multiple mailboxes. Each BES server is capable of handling 100 worker treads and up to 2000 users. Blackberry version [4.0.4.5], is capable of mapping worker treads back to a user mailboxes when a mailbox gets moved to a different store by scanning the GAL for changes in the Server DN.BES users may not receive messages to their handheld device after a mailbox move if the MAPI32.DLL version is not consistent on your BES servers and Exchange servers.

Note:

Mailbox moves within the same server are not updated by BES and thus messages will not be received by handheld until BES services are restarted. This is because BES scans users mailboxes for changes in the Server DN. Since mailboxes are moved within the same server, BES is unware of the mailbox move. This is by design.

Cause:

BES servers must have the same DLL versions for the following files as your Exchange server otherwise BES will not be able to reflect the mailbox move and users will not receive messages to their handheld device. In addition, your Exchange server will also experience a memory leak if your Emsmdb32.dll version is also not consistent with your BES and Exchange server.

MAPI32.DLL
Emsmdb32.DLL
CDO.DLL



Resolution:

Update the following files on all your BES servers to match that of your Exchange server. Do not copy and paste these files, you must apply the entire service pack.

MAPI32.DLL
Emsmdb32.DLL
CDO.DLL

Additional References:

Support - Memory leak causes ERR_RESOURCE_ALLOC error and truncated device message

Last Updated: 10 April 2006
Article Number: KB-03665



James Chong (MVP)
MCITP | EMA; MCSE | M+, S+
Security+, Project+, ITIL
msexchangetips.blogspot.com

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8 Comments:

Blogger Michael said...

Which service pack are you referring to? Exchange service pack, BES service pack?

3:39 PM  
Anonymous Andrey said...

What if we have both Exchange 2000 and 2003 served by one BES?

3:17 PM  
Blogger Joe said...

we have also experienced this issue but when I checked the versions of the files mentioned in the article they are exactly the same on the exchange server and the BES. THe fix that currently works for us was to go into Blackberry Manager and change the Agent that the user account uses to make the MAPI connection to the mailbox. THis is done by going into the user account>Advanced>changed the false setting to true and then changing the agent ID.

7:13 AM  
Blogger robmonkey said...

What SP are you referring to?

7:49 AM  
Anonymous Anonymous said...

Sorry guys, this might be off the subject but can you foward yahoo/gmail accounts through to the BES.

9:03 PM  
Blogger sukumar said...

very useful message about blackberry mobile detail. Thanks for the post.Mobile Application Development

1:14 AM  
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5:55 PM  
Anonymous Anonymous said...

I don't know why everyone says that your BES MAPI/CDO version needs to match the version on Exchange. You don't even need MAPI on Exchange. 2003 came with MAPI/CDO attached to the sys manager install, so that if you needed MAPI on another server like BES you could install sys manager and you would have MAPI/CDO on it. Only Clients need MAPI/CDO, Outlook, BES, etc. We have Ex2007 and you can search are servers and there is no MAPI/CDO on them. Our BES servers however have the latest version MAPI/CDO and we are getting this ERR_Resource_Alloc Message on the BES. When I see it I move the user to a different BEServer and it resolves it, but I'm the kind of person that searches for the root of the issue, and it has nothing to do with the version of MAPI on our Exchange servers, as it is not even need on there.

10:26 AM  

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